Apps2SD is native to Froyo, I don't understand why it isn't working unless there is a conflicting script that is causing issues for you---is this a clean install of Sapphire that you have recently performed

The confusion lies in the fact that Darktremor Apps2SD is the old-style Apps2SD (known as Classic Apps2SD, A2SD+, Apps2EXT). It requires an EXT2, EXT3 or EXT4 (if kernel supports it) partition on the SD card. It is not the same as Froyo Apps2SD.

The advantage to using Apps2EXT is that you can put all of your programs on the SD card. Froyo doesn't always allow you to do that unless you are using a 3rd party program.

Also, you can move the dalvik-cache to the SD card as well. Dalvik-cache takes up a lot of space in internal storage, so people like to move that off as well to free up more space.

The confusion lies in the fact that Darktremor Apps2SD is the old-style Apps2SD (known as Classic Apps2SD, A2SD+, Apps2EXT). It requires an EXT2, EXT3 or EXT4 (if kernel supports it) partition on the SD card. It is not the same as Froyo Apps2SD.

The advantage to using Apps2EXT is that you can put all of your programs on the SD card. Froyo doesn't always allow you to do that unless you are using a 3rd party program.

Also, you can move the dalvik-cache to the SD card as well. Dalvik-cache takes up a lot of space in internal storage, so people like to move that off as well to free up more space.